(navigation image)
Home American Libraries | Canadian Libraries | Universal Library | Community Texts | Project Gutenberg | Children's Library | Biodiversity Heritage Library | Additional Collections
Search: Advanced Search
Anonymous User (login or join us)
Upload
See other formats

Full text of "Handbook Of Chemical Engineering - I"

164
CHEMICAL ENGINEERING
The wheels are of paddle-wheel type—6 to 8 blades, and not quite so wide axially as the paddle wheels in "steel-plate" fans. Casings are spiral in form and of cast iron (see Fig. 20.) The range of pressures is from 0 to 6 oz., and they are used for forges, oil furnaces, light dust collecting, etc.
Cast-iron and steel-plate pressure fans are made by the American Blower Co., Type P; Buffalo Forge Co., Type P; B. F. Sturtevant Co., "Steel Pressure Blower." The wheels are of paddle type; number of blades from 6 to 24, width narrower than other types. Casing of spiral form (see Fig. 21). The range of pressures is from 4 to 16 oz. and the application is for forges, oil furnaces, cupolas, gas producers, boosters, etc.
4»	1	Static pressure, ounces											
$	d												
£	1	4			8			12			16		
a	•2	.p    03	d 5	05	0   -P	S3	F-4 0)	+3      <B	w   a) d -P	u	•8 -2	d   *	&
	2		o p						o d		o) d		
TJ	a	**•* d	•3 es	rW      °	«M      £	•43 pj	w   o	M-l      p	'43 d	_bd    O	**-  d	'43  d	i^!   O
1	1	.2 a			.21	11	03   ft (H       d	.2 a	J2 §	s «	.2 S	d -a *o  ^	2 £
*	1	O ft	>   n 03    0) fr>.    p,	pq CD 1	•3 & 0  ft		S	§1	Is.	CO   S 0	-3 & 0  ft	» S	«j
14	25	600	2,800	1.3	850	3,960	3.7	1,040	4,850	6.7	1,200	5,600	10.4
21	39	1,300	1,900	2.8	1,850	2,680	7.9	2,250	3,300	14.5	2,600	3,800	22.5
34	59	3,400	1,150	7.1	4,800	1,625	20.0	5,900	2,000	37.0	6,800	2,300	57.0
45	77	6,300	875	13.0	8,900	1,240	37.0	10,900	1,500	67.0	12,600	1,750	104.0
Steel-plate planing-mill fans (slow-speed type) are made by the American Blower Co., Buffalo Forge Co., Green Fuel Econ. Co., Sterling Blower Co., B. F. Sturtevant Co., etc. The wheels have 12 to 18 paddle-type blades, curved forward. Casing is of spiral form, about the same as in common steel-plate fans (see Fig. 22). The range of pressures from 0 to 6 oz. and they are used for conveying materials such as refuse from wood-working machinery, shoe machinery, buffing and emery wheels, etc.
00 01 -d	o	Static pressure, ounces											
g													
	"M	1			2			4			6		
	o>												
	^3												
a	"d	"a?  ^	"§' ®	t-	+»    03	§ «	<L>	-p    03	03     fl) d -»->	^	•8 -2	d -2	&
Wheel d]	•fi O 1	**""  d i^ o S	Revolutio per minu	Brake horsepow	$ s .2 i II	Revolutio per minu	Brake horsepow	"" .2 .2 'i	Revolutio per minu	Brake horsepow	-1 |J	Revolutio per minu	Brake horsepow
24	35	1,770	650	0.7	2,500	920	2.0	3,540	1,300	5.6	4,350	1,600	10.2
36	50	4,000	435	1.6	5,600	615	4.5	8,000	870	12.8	9,800	1,060|  23.5	
48	70	7,050	325	2.8	10,000	460	8.0	14,100	650	22.4	17,300	800	41.0
64	90	12,600	245	5.0	17,800	345	14.2	25,200	490	40.0	31,000	600	73.0
Steel-plate paddle-wheel fans are made by the American Blower Co., Buffalo Forge Co., Garden City Fan Co., Green Fuel Econ. Co., N. Y. Blower Co., B. F. Sturtevant Co., etc. The wheels have 8 to 12 blades which are deep radially and